Home / 20,236.11-27,925.71-11,283.72

Finding the Fourth Proportional to 20,236.11, 27,925.71 and 11,283.72

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Solution

The fourth proportional to 20,236.11, 27,925.71 and 11,283.72 is: 15,571.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.11 : 27,925.71 = 11,283.72 : x
  2. Step 2: Convert to fraction form
    20,236.11/27,925.71 = 11,283.72/x
  3. Step 3: Cross multiply
    20,236.11x = 27,925.71 × 11,283.72
  4. Step 4: Simplify right side
    20,236.11x = 315,105,892.44
  5. Step 5: Solve for x
    x = 315,105,892.44/20,236.11
  6. Step 6: Final answer
    x = 15,571.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.